The term identifies a scenario where luteinizing hormone (LH) levels, typically expected to surge mid-menstrual cycle, fail to exhibit the anticipated increase. This absence of an LH surge can be a significant indicator of ovulatory dysfunction. For example, a woman tracking her cycle with ovulation predictor kits might consistently observe negative results, signaling a lack of the characteristic LH peak.
Identifying the reasons behind this absence is critical for individuals seeking to conceive, as the LH surge triggers ovulation the release of an egg from the ovary. Failure to ovulate can significantly impede natural conception. Understanding the underlying cause allows for targeted interventions, potentially improving fertility outcomes. Historically, tracking LH levels was less accessible, making pinpointing ovulation issues challenging. Current diagnostic tools have made it easier to identify and address this potential impediment to fertility.